What was the business using? Clover, Rebel, NCR? On the pinpad itself, every vendor has limited control, and as you get into the smaller vendors, it comes down

What was the business using? Clover, Rebel, NCR? On the pinpad itself, every vendor has limited control, and as you get into the smaller vendors, it comes down to where they just have to take what Verifone & Ingenico provide.